Comparison of Reconstruction Algorithms for an Electronically Collimated Gamma Camera
Comparison of Reconstruction Algorithms for an Electronically Collimated Gamma Camera
复制标题
电子准直伽玛相机重建算法的比较
DOI：
10.1109/tns.1982.4335884
复制
发表时间：
1982
影响因子：
1.8
通讯作者：
Manbir Singh
中科院分区：
文献类型：
--
作者：
D. Doria;Manbir Singh
利用一种基于电子准直方法的新型伽马相机，研究了不同迭代算法重建单个伽马发射体发射图像的性能。研究了ART、SIRT和迭代最小二乘算法的适应性。通过仿真对算法的收敛速度、对噪声的敏感性、分辨率和重建图像的对比度进行了比较。用~(99m)Tc点源的实验测量数据也得到了结果。
The performance of different iterative algorithms has been studied for reconstructing emission images of single gamma emitters, using a new gamma camera based upon an electronic method of collimation. Adaptations of the ART, SIRT, and Iterative Least Squares algorithms have been studied. The algorithms have been compared via simulation with respect to the rate of convergence, sensitivity to noise, resolution, and contrast of the reconstructed image. Results have also been obtained with experimentally measured data from a point source of Tc-99m.